Answer:
Explanation:
Crossing over is the swapping of genetic material that occurs in the germ line. During the formation of egg and sperm cells, also known as meiosis, paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another
Plant taxonomy is the classification of a plant based on different levels (taxa) such as kingdom, division (phylum), class, order, family, genus, species.
<h3>What is taxonomy of ten flowers?</h3>
The taxonomy of few flowers is as follows:
- For Rose flower ; Kingdom : Plantae, Division: Magnoliophyta, Class: Magnoliopsida, Order: Rosales, Family: Rosacea, Subfamily: Rosoideae, and Genus: Rosa, Species: Rosa gallica and Rosa canina.
- For hibiscus flower: Kingdom: plantae, class: Magnoliopsida, Order: Malvales, Family: Malvaceae, Genus: Hibiscus L.
- For Buttercup ; Kingdom: Plantae ; Division: Magnoliophyta ; Class: Magnoliopsida ; Order: Ranunculales ; Family: Ranunculaceae,Genus: Ranunculus.
- For California Poppy: Kingdom: Plantae · Phylum: Spermatophyta · Subphylum: Angiospermae · Class: Dicotyledonae · Order: Papaverales, Family:Papaveraceae.
- For Daffodil: Domain: Eukaryota · Kingdom: Plantae · Phylum: Spermatophyta · Subphylum: Angiospermae · Class: Monocotyledonae.
- For sunflower: Kingdom; plante, Division;tracheophytes,Class;Magnoliopsida,Order; Asterales, Family:Asteraceae, Genus: Bellis L. – bellis, Species: Bellis perennis L.
- For tulip: Kingdom; Plantae, Phylum;Spermatophyta, Subphylum;Angiospermae, Class;Monocotyledonae, Phylum:Spermatophyta, Domain: Eukaryota.
- For balsam: Kingdom; Plantae, Division; Tracheophyta, Class; Pinopsida conifers,Order; Pinales pines, Family; Pinaceae pines, Genus Abies M., Species: Abies balsamea (L.).
Therefore, Plant taxonomy is the classification of a plant based on different levels (taxa) such as kingdom, division (phylum), class, order, family, genus, species.
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"It is extremely subjective" is the one statement among the following choices given in the question that is false regarding <span>cladistic analysis. The correct option among all the options that are given in the question is the fourth option or option "d". I hope that this is the answer that has actually come to your help.</span>
Answer:
In the semi-conservative method of DNA replication, each of the strands of the double helix acts as a template for replication.
Explanation:
Semi-conservative DNA Replication:
- Semi-conservative DNA replication produces two daughter helices from the original parent helix. One strand of the daughter helix is form the original template while the other is newly synthesized.
- This means that one strand will have the base sequence identical to the parent, while the other will be complementary to the template.
- This model was experimentally confirmed by an experiment conducted in 1958 by Meselson and Stahl. They used radioactive isotope of nitrogen i.e. N-14 or N-15. DNA molecules made with N-15 were allowed to replicate in the presence of N-14.
- After first replication, DNA molecules contained both N-15 and N-14 isotopes, disproving the conservative model that stated that the new helices are completely identical to the template.
- The second replication yielded only N-14 which disproved the dispersive model that the new helices are a combination of both the template and new strands.
